Edison-Rose is charming in theory, but in reality to me it seems like you didn't know if you wanted a boy or a girl, so you just stuck with your top boy and girl name.
Especially with Pauline, it just reinforces the "confusion" theme.

I pretty much agree with everyone else. I love double barrel names but am not a fan of Edison-Rose. We at one point considered the name Anne-Thomas for a future daughter, to honor a dear family member, but we ended up with a boy instead.